Today shots of an Orchid hybride, Oncostele Wildcat 'Golden Red Star' in reflected ultraviolet photography with a UV-Nikkor f4.5/105mm lens. UV filter used was the Baader-U filter, my "work horse" filter for reflected UV. All shots were done at f8 for the UV-Nikkor. Light source used was a modified for high UV output Xenon flash.
[click on image to see a larger one]
Visual vs reflected UV (Baader-U):
This orchid has a very specific UV pattern, its petals are very
UV dark, but its lower petal lip has on the lower center a very UV
bright spot as well as on its center "nose" formation an UV reflecting spot and all this gets nicely visible.
I have written more about this orchid HERE
Stay tuned, more will follow on that fascinating subject...
More info on this very interesting field may be found on my site http://www.pbase.com/kds315/uv_photos